Efren Caballes, DO, CAQSM

PM&R Sports Medicine
★★★★★ ★★★★★
PM&R Sports Medicine, Diagnostic Ultrasound, Fellowship Trained
Fax: 303-420-2279

Originally from the Chicago-land area, Dr. Efren Caballes joined Cornerstone Orthopedics & Sports Medicine in 2016. His approach to patient care is based on combining all available modalities for musculoskeletal conditions including exercise, physical modalities, bracing, injections, and regenerative medicine. One of his special interests is diagnostic and therapeutic use of musculoskeletal ultrasound. His clinical repertoire of treatments focuses on continually balancing the patient’s physical goals with optimal recovery needs.

Prior to working at Cornerstone Orthopedics, Dr. Caballes earned a Bachelor of Science Degree in Molecular Cellular Biology from the University of Illinois at Urbana-Champaign and attended medical school at the Touro College of Osteopathic Medicine in New York City (NYC). Dr. Caballes completed his residency in Physical Medicine and Rehabilitation (PM&R) at New York University (NYU) Medical Center, where he also served as Chief Resident, and completed a PM&R Sports Medicine Fellowship at NYU. His training also provided him the opportunity to take care of the numerous endurance athletes at the NYU Center for Musculoskeletal Care Running Performance Lab, as well as musicians and dancers at the Julliard School and Harkness Center for Dance Injuries.

Dr. Caballes developed an enthusiasm for running while in NYC, where he joined the Prospect Park Track Club and volunteered with Back on My Feet – an organization combating homelessness through the power of running. Since moving to Colorado, he has become actively involved in treating runners and triathletes ranging from recreational athletes to professional and Olympic athletes.

Dr. Caballes is currently certified as a level 1 USA Track and Field coach and was selected to serve as a volunteer physician for the US Olympic and Paralympic Committee Colorado Springs Olympic Training Center in March 2020. Recent and current academic positions include sports ultrasound faculty for the America Medical Society for Sports medicine, clinical instructor for Touro College of Osteopathic Medicine in NY, and clinical instructor for the St. Anthony’s Medical Center Sports Medicine fellowship.

As an avid runner and outdoor enthusiast, Dr. Caballes has completed several marathons in New York City, Chicago, and Berlin to name a few. He also enjoys cross country skiing, cycling, hiking, and traveling/running Ragnar Relay Races with his wife.


  • Fellowship: Physical Medicine and Rehabilitation Sports Medicine / New York University / New York, NY
  • Residency: Physical Medicine and Rehabilitation / New York University / New York, NY
  • Medical School: DO, Touro College of Osteopathic Medicine, New York, NY
  • Undergraduate School: Molecular and Cellular Biology, University of Illinois at Urbana-Champaign, Champaign, IL

Board Certifications

  • Physical Medicine and Rehabilitation
  • Sports Medicine

Memberships & Organizations

  • American Medical Society for Sports Medicine
  • USA Track & Field (USATF)
  • American Academy of Physical Medicine and Rehabilitation
  • Recipient of the 2015 Howard Rusk Award for Teaching and Leadership
  • Former Head Team Physician for St. Joseph’s College
  • International Association for Dance Medicine and Science
  • New York Society of Physical Medicine and Rehabilitation

Interests & Hobbies

  • Running
  • Cross Country Skiing


Dr. Caballes' Reviews
MaryBeth VellequetteMaryBeth Vellequette
01:03 14 Mar 24
This was my first appointment with Dr. Caballes, and I was thrilled to find a practitioner with his listening skills, thoroughness, and knowledge of the current scientific/medical literature. I look forward to working with him over the next couple of months to resolve an issue that has plagued me for years. I left with an overwhelming sense of “he gets it” and excitement at having found a partner that will help solve my foot issue.
Melissa MeltonMelissa Melton
14:08 03 Mar 24
Lisa BecharasLisa Becharas
20:47 15 Nov 23
I’ve been seeing Dr. Caballes for 4+ year for various injuries and he always helps me get to the bottom of them! Hands down best sports med dr in the area!!
Brian HoldenBrian Holden
21:29 10 Nov 23
Was a clean well run placeGranted I am there for an auto accident but I would choose DrCaballes for any other pains I might get that need his expertise.
Alberto BorreroAlberto Borrero
21:27 25 Oct 23
It was very informative and helpful. I really liked his manner and helpfulness for future therapy. Thanks a lot Efrem
Frank FazzioFrank Fazzio
19:08 09 Sep 23
Dr. Caballes, hands-down, the best orthopedic doctor I’ve ever had opportunity to visit and work with. His ability to listen and to share, and to work with you as closely as possible revise nothing but excellent results. Thank you, Frank
Christen SeiterChristen Seiter
21:42 06 Sep 23
Dr. Caballes is an amazing doctor. He is friendly, he listens, he takes time to explain what he is diagnosing & what treatment is necessary.When I first met him I had already been to a few drs that said I would need a knee replacement in the future, with no other solution in the mean time. I was distressed thinking I wouldn’t be able to hike, bike & ski, or truly even walk very well.Dr. Caballes is extremely knowledgeable & has made sure I can keep doing the activities I love without invasive surgery & pain. I’m so happy I was referred to him. Thank you Dr.Caballes for making my life so much better!
Nancy ThomasNancy Thomas
19:38 23 Aug 23
Dr. Caballes is phenomenal! He puts my health needs first and goes out of his way to explain things to me and assures me that what he is doing will help my situation. I’ve had great success with Dr. Caballes I would recommend him to anyone which I have done!
Jessie WilliamsonJessie Williamson
23:40 02 Aug 23
I went in due to popping sounds & shooting pains in my knee that I had experienced for over a year.Dr Caballes recommended I do 3 Sodium Hyloronate shots over a period of weeks and then PRP in both knees over a month later. I followed all of Dr Caballes rehab instructions and completed all the physical therapy he suggested. My knees are now pain free and feeling strong. I just had my last follow up appt with Dr Caballes and I told him how happy I was with the results! I would definitely recommend him!!!
Kelsey DuttonKelsey Dutton
20:10 28 Jul 23
Dr. Caballes is clearly an expert in the field. He gave me sound advice and confidence for full recovery. His practice has cutting edge technology and he follows the latest research. My issue was knee related and I found his insight and expertise invaluable. As my referring PT said “if it were my knee I wouldn’t see anyone else”. He was 100% right.
Dr. Caballes' Locations